Class Registry

Get/Set Windows registry values 'ClassRegistry: Option Public Option Explicit '// API Constants Const REG_SZ = 1 Const REG_DWORD = 4 Const HKEY_CLASSES_ROOT = &H80000000 Const HKEY_CURRENT_USER = &H80000001 Const HKEY_LOCAL_MACHINE = &H80000002 Const HKEY_USERS = &H80000003 Const ERROR_NONE = 0 Const ERROR_BADDB = 1 Const ERROR_BADKEY = 2 Const ERROR_CANTOPEN = 3 Const ERROR_CANTREAD = 4 Const ERROR_CANTWRITE = 5 Const ERROR_OUTOFMEMORY...

= 6 Const ERROR_INVALID_PARAMETER = 7 Const ERROR_ACCESS_DENIED = 8 Const ERROR_INVALID_PARAMETERS = 87 Const ERROR_NO_MORE_ITEMS = 259 Const KEY_ALL_ACCESS = &H3F Const REG_OPTION_NON_VOLATILE = 0 Const REG_PARAMETER_IS_RESERVED = 0 Const REG_DEFAULT_VALUE = "" Const cMAXLEN_BUFFER = 255 '// API Declarations Declare Function RegCloseKey Lib "advapi32.dll" (Byval hKey As Long) As Long Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" (Byval hKey As Long, Byval lpSubKey As String, Byval ulOptions As Long, Byval samDesired As Long, phkResult As Long) As Long Declare Function RegQueryValueExString Lib "advapi32.dll" Alias "RegQueryValueExA" (Byval hKey As Long, Byval lpValueName As String, Byval lpReserved As Long, lpType As Long, Byval lpData As String, lpcbData As Long) As Long Declare Function RegQueryValueExLong Lib "advapi32.dll" Alias "RegQueryValueExA" (Byval hKey As Long, Byval lpValueName As String, Byval lpReserved As Long, lpType As Long, lpData As Long, lpcbData As Long) As Long Declare Function RegQueryValueExNULL Lib "advapi32.dll" Alias "RegQueryValueExA" (Byval hKey As Long, Byval lpValueName As String, Byval lpReserved As Long, lpType As Long, Byval lpData As Long, lpcbData As Long) As Long Declare Function RegSetValueExString Lib "advapi32.dll" Alias "RegSetValueExA" (Byval hKey As Long, Byval lpValueName As String, Byval Reserved As Long, Byval dwType As Long, Byval lpValue As String, Byval cbData As Long) As Long Declare Function RegSetValueExLong Lib "advapi32.dll" Alias "RegSetValueExA" (Byval hKey As Long, Byval lpValueName As String, Byval Reserved As Long, Byval dwType As Long, lpValue As Long, Byval cbData As Long) As Long Const cREG_COMPONENTS_PATH = "Software\Lotus\Lotus Components\1.0" Const cREG_COMPONENTS_KEYNAME = "LoaderPath" Class Registry '// Declare Member Varaibles Private hkey As Long '// Declare Member Code Declare Public Function GetValue( ItemName$ ) As String Declare Public Function SetValue( ValueName As String, lType As Long, vValue As Variant) As Long '// Constructor Sub New( Section, KeyName$ ) Call RegOpenKeyEx(Section, KeyName$, REG_PARAMETER_IS_RESERVED, KEY_ALL_ACCESS, Me.hKey) End Sub '// Destructor Sub Delete() Call RegCloseKey (Me.hKey) End Sub Public Function GetValue( ItemName$ ) As String Dim sData As String Dim lpcbData As Long Dim lpType As Long '// First we initialize the buffer sData = String(cMAXLEN_BUFFER, 0) lpcbData = Len(sData) '// Get it Call RegQueryValueExString( Me.hKey, ItemName$, REG_PARAMETER_IS_RESERVED, lpType, sData, lpcbData) '// Return GetValue = Left( sData, Instr( 1, sData, Chr$(0) )-1) End Function Public Function SetValue( ValueName As String, lType As Long, vValue As Variant) As Long Dim lValue As Long Dim sValue As String Select Case lType Case REG_SZ '//sValue gets assigned the value vValue sValue = vValue '// Set value to Windows

This was first published in November 2000

Dig deeper on Domino Resources - Part 3

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